The bestBy Jimon 6/27/2014

Really not much to say as the product is excellent quality and works. Do yourself a favor and don't cut corners on an ATO.

Simple design with a back up switchBy mfiefon 6/26/2014

mfief would recommend this product to a friend

if you read the directions this is fairly easy to set up. I didn't want to spend the money but in the end it has been worth every penny. I definitely noticed a difference in my corals. instead of adding a half gallon of top off water in the morning and at night this does the job several times through out the day without forgetting.

I love the sensitivity of the optical sensor and the face that there is a back up float valve and alarm as an insurance policy.

The pump is a little noisy and be careful with the magnets, they are strong and will get more than your attention if you pinch yourself with them.

Easy set upBy Joshuaon 5/28/2014

Joshua would recommend this product to a friend

Its working great so far. It only took me about 15 minutes to set it up.

Awesome! Best I have used!By Cornfedoneon 5/5/2014

Cornfedone would recommend this product to a friend

I have had ATOs but this one rocks! Easy setup, I am able to keep topoffs to a minimum so not to disturb ph, all, calcium levels.
All I can really say, is Love This ATO!

LOVE IT!By Shawnaon 5/1/2014

Shawna would recommend this product to a friend

I am SOOOOOO happy that I no longer have to tote around gallons of salt water to top off daily That got old really fast and my tank isn't even that big. This little gadget was easy to mount and works perfectly. Several times throughout the day I'll hear it rev up and top off the tank, keeping my salinity from fluctuating.

AwesomeBy Chrison 5/1/2014

Chris would recommend this product to a friend

I truly wish i would have made this purchase years ago. It was very easy to install and works like a champ.

PerfectBy Annekeon 4/30/2014

Anneke would recommend this product to a friend

I have had this ATO for a couple weeks now and it is so reliable that I almost forgot I have it. It was easy to set, and did not need a break-in period.

German product. By waterflyeron 4/26/2014

waterflyer would recommend this product to a friend

Need I say more. This is made in Germany. Extremely high quality product. I actually have mine 20 feet away from my tank and it pumps it with no problem. Horizontally and with only a 4 ft vertical height above the actual pump. Great system, very reliable!

Must HaveBy Jasonon 4/23/2014

Jason would recommend this product to a friend

I can't believe I ever went without this! It flat works, no questions asked. Easy setup, no brained operation. Well worth it.

Set it and forget itBy Arrickon 4/23/2014

Arrick would recommend this product to a friend

This product works exactly as described is easy to set up and will easily be the most trusted piece of equipment you will have in your system.

Don't skip out on this!By Michaelon 4/22/2014

Michael would recommend this product to a friend

After having a 180g reef leak from a poor install and destroy 1100sf of my house I have learned that there are certain items that you do not skimp on to save money and a good return pump and ATO are one of them.

Not only will you have the piece of mind that your ATO will not flood and ruin your floors but your reef will be happier and your skimmer will work like never before!

This ATO is amazing and is well worth the price.

So far, so goodBy Annekeon 4/17/2014

Anneke would recommend this product to a friend

This was easy to set up and started working immediately. There was no break-in period.